Aircraft air compressor mounting seat

Abstract

The utility model discloses an aircraft air compressor mounting seat which comprises a mounting support, the mounting support comprises a plurality of supports, the adjacent supports are connected through rib plates to form a frame structure, cavities are formed in the supports, self-locking nuts are arranged in the cavities, the self-locking nuts are connected with the supports, and the rib plates are connected with the self-locking nuts. A first mounting hole coaxial with the self-locking nut is formed in the mounting end surface of the support; the installation support is connected with the installation platform, and the installation platform is used for fixedly installing the installation support on a cabin bottom plate of an airplane. By the adoption of the installation support of the frame structure, the air compressor can be stably connected to the cabin bottom plate, meanwhile, the installation support can play a good vibration isolation role between the air compressor and the cabin bottom plate, and the problem that the air compressor fails to be connected at the installation position is well solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft assembly, and in particular relates to an aircraft air compressor mounting seat. Background Art

[0002] Air compressors are used to compress low-pressure air into high-pressure air with a certain pressure, which can be used in the auxiliary power system and breathing system of aircraft to ensure the auxiliary power performance and breathing performance of the aircraft. In industrial applications, air compressors are usually installed with anchor bolts or bolts and nuts. However, when air compressors are installed on aircraft, due to the thinness of the cabin floor, the low strength and rigidity of the cabin floor, and the influence of the vibration, impact of the aircraft and the vibration of the air compressor superimposed on the environmental conditions, the air compressor is difficult to be effectively fixed and connection failure is prone to occur at the fixed installation location. Utility Model Content

[0003] The utility model aims to provide an aircraft air compressor mounting seat to solve the problem that connection failure is easy to occur at the mounting position when the air compressor is installed on the aircraft.

[0004] The utility model is realized by the following technical solutions:

[0005] Aircraft air compressor mount, including:

[0006] A mounting bracket, wherein the mounting bracket comprises a plurality of supports, adjacent supports are connected by rib plates to form a frame structure, a cavity is provided in the support, a self-locking nut is provided in the cavity, the self-locking nut is connected to the support, and a first mounting hole coaxially arranged with the self-locking nut is provided on the mounting end surface of the support;

[0007] The mounting platform is connected to the mounting bracket, and the mounting platform is used to fix the mounting bracket to the cabin bottom plate of the aircraft.

[0008] In some embodiments, the self-locking nut adopts a double-ear support plate self-locking nut, and two rivet holes matching the self-locking nut are provided on the mounting end surface of the support, and the self-locking nut and the support are riveted together.

[0009] In some embodiments, the straight line where the two riveting holes on each support are located has different angles relative to the length or width direction of the installation platform.

[0010] In some embodiments, each support has an irregular cross-sectional structure, and the longitudinal directions of each support are arranged in different directions.

[0011] In some embodiments, the mounting platform includes two mounting plates relatively arranged on both sides of the mounting bracket, and multiple groups of mounting components are respectively arranged on the mounting plates, each group of mounting components includes a plurality of second mounting holes spaced apart along the length direction of the mounting plates, and each group of mounting components is spaced apart along the width direction of the mounting plates, and the second mounting holes of two adjacent groups of mounting components are aligned or staggered in the width direction of the mounting plates.

[0012] In some embodiments, reinforcing ribs are provided between the mounting plate and the supports or rib plates near each support position.

[0013] In some embodiments, vibration-damping holes are provided on the reinforcing ribs.

[0014] In some embodiments, the rib plates between the mounting plates are suspended relative to the assembly bottom surface where the mounting platform is located.

[0015] In some embodiments, an elastic buffer section in an irregular curve shape is provided on the rib plate between the mounting plates.

[0016] In some embodiments, vibration-damping holes are provided on the rib plate.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] 1) The mounting base adopts a method of connecting the mounting platform with the cabin bottom plate and connecting the air compressor with the mounting bracket to achieve a transition connection between the air compressor and the cabin bottom plate; and by adopting a mounting bracket with a frame structure, while achieving a stable connection of the air compressor to the cabin bottom plate, the mounting base can play a good vibration isolation role between the air compressor and the cabin bottom plate, reducing the influence of the vibration of the air compressor and the fuselage on each other and on the connection structure between the air compressor and the mounting bracket, the mounting platform and the cabin bottom plate, and well solving the problem of connection failure of the air compressor at the installation position.

[0019] 2) Directly connecting the self-locking nuts on each independently arranged support not only solves the problem of preventing the air compressor from loosening during installation, but also makes the disassembly and assembly of the air compressor more convenient.

[0020] 3) By optimizing the design of the support on the mounting bracket and the setting direction of the self-locking nut on the support, the force exerted on the mounting bracket by the vibration of the air compressor in all directions can be well decomposed, so as to reduce the influence of the vibration of the air compressor on the connection structure between the mounting bracket and the cabin bottom plate, so as to further avoid the connection failure at the installation position with the cabin bottom plate, and reduce the influence of the vibration of the air compressor on the support structure.

[0021] 4) Through the design of the rib plate structure and the setting of the vibration reduction holes, the mounting base can play a better role in vibration reduction and vibration isolation, reducing the impact of the air compressor vibration on the connection structure between the cabin bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic structural diagram of one implementation of the mounting seat of the utility model.

[0024] Figure 2 This is a top view of the structure of one implementation scheme of the mounting seat of the utility model.

[0025] Figure 3 for Figure 2 Schematic diagram of the AA section.

[0026] Figure 4 for Figure 2 Rear view of the center mounting structure.

[0027] in:

[0028] 10. mounting bracket, 11. support, 12. rib plate, 121. elastic buffer section, 13. cavity, 14. first mounting hole, 15. riveting hole, 16. assembly end surface;

[0029] 20. mounting platform, 21. mounting plate, 22. second mounting hole, 23. assembly bottom surface;

[0030] 30. Self-locking nut, 31. Countersunk rivet;

[0031] 41. Reinforcement ribs, 42. Vibration reduction holes. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0033] When installing an air compressor on an aircraft, there are many difficulties in installing the air compressor on the aircraft due to the thin cabin floor, low strength and rigidity, as well as the vibrations generated when the air compressor is working, the vibrations and impacts during the flight of the aircraft, etc. The conventional installation and connection method of directly installing the air compressor on the aircraft cabin floor with bolts and nuts is prone to problems such as bolt breakage and loosening, which will cause the installation and connection of the air compressor to fail. At the same time, due to the small space in the aircraft cabin, the existing installation and connection method is not only inconvenient to disassemble and assemble, but also difficult to maintain the compressor, and it also brings great difficulty to the anti-loosening treatment of the connection parts.

[0034] Based on these problems existing in the installation and use of air compressors, the utility model adopts a mounting seat to perform a transition connection between the air compressor and the cabin bottom plate, and utilizes the structural characteristics of the mounting seat to achieve vibration reduction and vibration isolation between the air compressor and the cabin bottom plate, so as to reduce the influence of the vibration of the air compressor and the aircraft on the connection part, and ensure the reliability and stability of the connection.

[0035] In some embodiments, reference Figure 1 , Figure 2 and Figure 3 , Aircraft air compressor mounts include:

[0036] The mounting bracket 10 includes a plurality of supports 11. Adjacent supports 11 are connected by ribs 12 to form a frame structure. A cavity 13 is provided in the support 11. A self-locking nut 30 is provided in the cavity 13. The self-locking nut 30 is connected to the support 11. A first mounting hole 14 coaxially arranged with the self-locking nut is provided on the mounting end surface of the support 11.

[0037] And a mounting platform 20, the mounting bracket 10 is connected to the mounting platform 20, and the mounting platform 20 is used to fix the mounting bracket to the cabin bottom plate of the aircraft.

[0038] For example, four supports are provided on the mounting bracket, and the four supports are used to provide an assembly platform for the air compressor, and the self-locking nuts on the supports are used to fix the air compressor. The supports are connected by four rib plates, so that the mounting bracket forms a square frame structure.

[0039] On the mounting bracket of the mounting seat, each support serves as the installation and connection basis of the air compressor, and the upper end surface of the support 11 and the rib plate 12 forms the assembly end surface 16 of the air compressor. The contact area between the mounting bracket and the compressor is small, and based on the characteristics of the hollow frame structure of the mounting bracket, the mounting seat can play a good vibration reduction and vibration isolation effect between the air compressor and the cabin bottom plate.

[0040] During installation, the mounting base is fixed to the cabin bottom plate through the mounting platform, and then the air compressor is fixed to the mounting bracket through bolts and self-locking nuts to achieve fixed installation of the air compressor. This is not only convenient for installation, but also only requires the removal of four bolts when disassembling the air compressor, making the disassembly and maintenance of the air compressor convenient; and the self-locking nuts fixedly connected to the mounting base are used for connection, so no additional anti-loosening measures are required during installation, making the installation operation and structure of the air compressor more convenient.

[0041] In some embodiments, the self-locking nut 30 adopts a double-ear support plate self-locking nut, and two rivet holes 15 matching the self-locking nut are provided on the mounting end surface of the support 11, and the two rivet holes respectively match the ear holes on the double-ear support plate self-locking nut, and the self-locking nut 30 and the support 11 are riveted together by countersunk rivets 31. The structural characteristics of the double-ear support plate self-locking nut are utilized to fix the self-locking nut to the support, so as to facilitate the fixed connection between the self-locking nut and each support, and facilitate the assembly between the bolt and the self-locking nut when the compressor is installed.

[0042] In some embodiments, the straight lines where the two riveting holes 15 on each support 11 are located have different angles relative to the length or width direction of the mounting platform. Through this arrangement, the force generated by the vibration of the air compressor on the connection position between the air compressor and the mounting seat can be decomposed, reducing the influence of the vibration of the air compressor on the self-locking nut, thereby avoiding deformation or failure of the connection between the self-locking nut and the support.

[0043] In some embodiments, each support 11 has an irregular cross-sectional structure, and the longitudinal direction of each support 11 is arranged in different directions. By setting the support structure, while reducing the volume of each support, the force generated by the vibration of the air compressor in various directions on the mounting platform can be well decomposed, so as to reduce the influence of the vibration of the air compressor on the connection structure between the mounting seat and the cabin bottom plate, and reduce the influence of the vibration of the air compressor on the support structure.

[0044] In some embodiments, the mounting platform 20 includes two mounting plates 21 relatively arranged on both sides of the mounting bracket, and multiple groups of mounting components are respectively arranged on the mounting plates 21, each group of mounting components includes a plurality of second mounting holes 22 spaced apart along the length direction of the mounting plate, and each group of mounting components is spaced apart along the width direction of the mounting plate, and the second mounting holes 22 of two adjacent groups of mounting components are aligned or staggered in the width direction of the mounting plate.

[0045] by Figure 2Taking the shown mounting platform structure as an example, two mounting plates 21 are integrally formed with the mounting bracket 10 and are located on both sides of the square frame structure, wherein the two supports located on one side are correspondingly arranged on one of the mounting plates. At this time, the two mounting plates are separated and will not affect the vibration isolation performance of the mounting bracket.

[0046] Two sets of second mounting holes are respectively provided on the two mounting plates. Figure 2 It can be seen that two groups of second mounting holes are set on one mounting plate, and the two groups of second mounting holes are staggered in the width direction of the mounting plate; two groups of second mounting holes are set on the other mounting plate, and the two groups of second mounting holes are aligned in the width direction of the mounting plate. The mounting base is stably connected to the cabin floor of the aircraft through four groups of second mounting holes.

[0047] In some embodiments, reinforcing ribs 41 are provided between the mounting plate and the supports or rib plates near each support position to increase the structural strength between the mounting bracket and the mounting plate. Here, the reinforcing ribs are provided near the supports, which can increase the structural strength of the connection between the supports and the mounting plate while reducing the influence of the provision of the reinforcing ribs on the vibration isolation and vibration absorption performance of the mounting bracket.

[0048] In some embodiments, a vibration reduction hole 42 is provided on the reinforcing rib 41. The vibration reduction hole is a triangular or waist-shaped through hole, which can reduce the weight while further reducing the influence of the reinforcing rib on the vibration isolation and vibration absorption performance of the mounting bracket.

[0049] In some embodiments, the rib plate 12 between the mounting plates is suspended relative to the assembly bottom surface 23 where the mounting platform is located, so as to further ensure the vibration isolation and vibration absorption performance of the mounting bracket while ensuring the overall structural strength of the mounting base.

[0050] In some embodiments, reference Figure 1 , an elastic buffer section 121 in an irregular curve shape can be arranged on the rib plate between the mounting plates. Similarly, the arrangement of the elastic buffer section can further increase the vibration isolation and vibration absorption performance of the mounting bracket.

[0051] In some embodiments, reference Figure 1 and Figure 4 , a vibration reduction hole 42 can be provided on the rib plate 12. Similarly, the vibration reduction hole is a triangular or waist-shaped through hole, which increases the vibration isolation and vibration absorption performance of the mounting bracket and plays a role in weight reduction.

[0052] The mounting base can not only realize the convenient installation of the air compressor on the aircraft, but also facilitate disassembly and maintenance, and can well solve the problem of loosening and failure of the connection structure caused by vibration of the air compressor and aircraft; it has the characteristics of simple structure, small size, light weight, high reliability, etc.

[0053] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0054] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. Aircraft air compressor mounting base, characterized in that: include: A mounting bracket, wherein the mounting bracket comprises a plurality of supports, adjacent supports are connected by rib plates to form a frame structure, a cavity is provided in the support, a self-locking nut is provided in the cavity, the self-locking nut is connected to the support, and a first mounting hole coaxially arranged with the self-locking nut is provided on the mounting end surface of the support; The mounting platform is connected to the mounting bracket, and the mounting platform is used to fix the mounting bracket to the cabin bottom plate of the aircraft.

2. The aircraft air compressor mount according to claim 1, characterized in that: The self-locking nut adopts a double-ear support plate self-locking nut, and two riveting holes matching with the self-locking nut are arranged on the mounting end surface of the support, and the self-locking nut is connected to the support by riveting.

3. The aircraft air compressor mounting base according to claim 2, characterized in that: The straight lines where the two riveting holes on each support are located have different angles relative to the length or width direction of the installation platform.

4. The aircraft air compressor mount according to claim 1, characterized in that: Each support has an irregular cross-section structure, and the longitudinal directions of each support are arranged in different directions.

5. The aircraft air compressor mount according to claim 1, characterized in that: The mounting platform includes two mounting plates arranged relatively on both sides of the mounting bracket, and multiple groups of mounting components are respectively arranged on the mounting plates, each group of mounting components includes multiple second mounting holes arranged at intervals along the length direction of the mounting plates, and each group of mounting components is arranged at intervals along the width direction of the mounting plates, and the second mounting holes of two adjacent groups of mounting components are aligned or staggered in the width direction of the mounting plates.

6. The aircraft air compressor mount according to claim 5, characterized in that: Reinforcing ribs are arranged near each support and between the mounting plate and the support or the rib plate.

7. The aircraft air compressor mount according to claim 6, characterized in that: The reinforcing ribs are provided with vibration-damping holes.

8. The aircraft air compressor mount according to claim 5, characterized in that: The rib plates located between the mounting plates are suspended relative to the assembly bottom surface where the mounting platform is located.

9. The aircraft air compressor mount according to claim 5, characterized in that: An elastic buffer section in an irregular curve shape is arranged on the rib plate between the mounting plates.

10. The aircraft air compressor mounting according to claim 1 or 9, characterized in that: The rib plate is provided with vibration reduction holes.

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